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Mercury
Work Group
Phase I Reports >> End of Pipe Report
Executive Summary | End-of-Pipe Report |
Operations Report | Infrastructure Report
For more information,
contact David Eppstein by email at
deppstein@masco.harvard.edu,
or by calling 617-632-2860.
Conclusions
In summary:
- we have forged a
unique partnership with the MWRA and have, with this
significant assistance, been able to access data not
otherwise obtainable
- we have compiled
data on hospital wastewater characteristics in "real
time"
- we have reviewed all
currently available technologies via vendor interviews
- we have compiled
analytical data produced from field demonstration trials at
member institutions which show significant removal
efficiencies (99.7%) but still produce an effluent
prohibited from being discharged to the MWRA sewerage system
- we have compiled
preliminary cost information for each technology as a
function of volume
- we are arranging for
the completion of additional field demonstration testing of
proposed pilot systems at Member host facilities.
When we started this
process, our Subcommittee believed that it would find a
technology that was readily available, proven and reasonably
priced. We heard many vendors claim that they had a system able
to meet a 1.0 ppb mercury performance standard. Upon closer
investigation, however, we could not document that any of the
available technologies can consistently meet our stated
objective at any cost. It appears, at least to the members of
the End of Pipe Subcommittee, that the best solution for
approaching compliance with the MWRA's stated objective, based
on technology, cost (capital and operating), impact upon the
environment and efficacy cannot be found at the end of the pipe.
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